Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 14,919,000	$ 18,059,000
Current assets:
Cash and cash equivalents	11,664,000	12,039,000
Restricted cash	2,768,000	6,020,000
Accounts receivable, net of allowance for doubtful accounts of $1,216 and $1,411, respectively	14,627,000	18,399,000
Inventories, net	317,000	957,000
Prepaid expenses and other current assets	2,241,000	3,184,000
Income taxes receivable	129,000	118,000
Total current assets	31,746,000	40,717,000
Property and equipment, net of accumulated depreciation of $26,481 and $26,528, respectively	5,832,000	5,976,000
Goodwill	2,116,000	2,116,000
Other intangible assets, net of accumulated amortization of $6,601 and $6,608, respectively	1,070,000	1,164,000
Restricted cash	487,000	0
Right-of-use operating lease assets	1,293,000	0
Assets held for sale	396,000	485,000
Other assets	1,041,000	1,261,000
Total assets	43,981,000	51,719,000
Current liabilities:
Accounts payable	3,890,000	9,499,000
Accrued liabilities:
Operating lease liabilities - current	472,000	0
Employee compensation	947,000	1,563,000
Other accrued liabilities	5,282,000	6,099,000
Total current liabilities	10,591,000	17,161,000
Operating lease liabilities - non-current	810,000	0
Deferred income taxes	172,000	171,000
Other liabilities	290,000	335,000
Total liabilities	11,863,000	17,667,000
COMMITMENTS AND CONTINGENCIES (Note 14)
Stockholders’ equity:
Common stock, $.01 par value, 40,000,000 shares authorized, 24,843,668 and 24,825,891 shares issued, and 24,186,824 and 24,170,585 shares outstanding, respectively	248,000	248,000
Additional paid-in capital	139,211,000	138,992,000
Accumulated deficit	(104,707,000)	(102,495,000)
Accumulated other comprehensive loss	(1,224,000)	(1,285,000)
Nil coupon perpetual loan notes	76,000	76,000
Treasury stock, at cost	(1,486,000)	(1,484,000)
Total stockholders’ equity	32,118,000	34,052,000
Total liabilities and stockholders’ equity	$ 43,981,000	$ 51,719,000