Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000786947 (http://www.sec.gov/CIK)

Payables and Accruals [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Payables and Accruals [Abstract]
Accurued Expenses	Accrued expenses are summarized as follows (in thousands):       December 31,       2016   2015   Professional services   $ 232   $ 171   Other fees and services     95     64   Payroll, payroll taxes and benefits     116     101   Clinical and regulatory services     233     92   Marketing, advertising, and promotion     10     115   Property taxes     16     15   Franchise taxes     1     6       $ 703   $ 564