CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating activities:
Net (loss) income	$ (3,498)	$ (3,669)	$ (13,502)
Adjustments to reconcile net loss to cash (used in) provided by operating activities:
Stock-based compensation	50	0	0
Dividends of preferred stock as interest expense	3,843	3,890	3,889
Depreciation and amortization	1,999	2,898	4,291
Provision for inventory obsolescence	73	215	92
(Benefit) provision for doubtful accounts receivable	(18)	(56)	113
Amortization of debt issuance costs	160	65	152
Deferred income tax (benefit) provision	(2,710)	192	5,113
Loss on disposal of fixed assets	4	0	11
Changes in assets and liabilities:
(Increase) decrease in accounts receivable	(5,415)	14	3,364
(Increase) decrease in inventories	(10,041)	(866)	352
(Increase) decrease in deferred program expenses	(1,886)	548	657
Decrease in other current assets and other assets	1,086	1,824	1,330
Increase (decrease) in accounts payable and other accrued payables	10,376	3,722	(3,840)
(Decrease) increase in accrued compensation and benefits	(615)	3,316	552
Increase in deferred revenue	5,173	1,434	122
Increase in other current liabilities	828	328	27
Cash (used in) provided by operating activities	(591)	13,855	2,723
Investing activities:
Capitalized software development costs	(1,481)	0	0
Purchases of property and equipment	(748)	(624)	(394)
Cash used in investing activities	(2,229)	(624)	(394)
Financing activities:
Proceeds from senior credit facilities	0	70,032	139,072
Repayments of senior credit facilities	0	(75,640)	(139,118)
Repayments of term loan	0	(3,200)	(2,300)
Decrease in book overdrafts	0	(1,083)	(1,298)
Proceeds from senior term loan	9,439	0	0
Proceeds from subordinated debt	0	0	2,500
Redemption of senior preferred stock	(2,112)	0	0
Payments under capital lease obligations	(915)	(827)	(772)
Proceeds from sale of Telos ID 10% membership interest	0	0	2,000
Distributions to Telos ID Class B member - non-controlling interest	(3,651)	(1,912)	(2,387)
Cash used in financing activities	2,761	(12,630)	(2,303)
(Decrease) increase in cash and cash equivalents	(59)	601	26
Cash and cash equivalents, beginning of the year	659	58	32
Cash and cash equivalents, end of year	600	659	58
Cash paid during the year for:
Interest	2,395	1,320	1,523
Income taxes	26	60	65
Noncash:
Dividends of preferred stock as interest expense	3,843	3,890	3,889
Debt issuance costs and prepayment of interest on senior term loan	1,561	0	0
Gain on extinguishment of subordinated debt	$ 1,031	$ 0	$ 0