CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities
Net loss	$ (13,816,000)	$ (6,620,000)	$ (3,881,000)
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	3,965,000	4,401,000	4,517,000
Inventory write-down	2,225,000	0	3,441,000
Stock expense - bonuses and options	48,000	156,000	495,000
Deferred income taxes	1,049,000	(4,234,000)	459,000
Impairment loss, intangibles and goodwill	3,489,000	6,840,000	0
Gain on sale of property and equipment	(40,000)	(47,000)	(107,000)
Gain on sale of intangible asset	(625,000)	0	0
Amortization of loan fees included in interest expense	302,000	178,000	124,000
Change in assets and liabilities
Receivables	1,888,000	3,847,000	10,259,000
Net investment in sales-type leases	0	40,000	33,000
Inventories	5,522,000	2,015,000	12,325,000
Income tax receivable	1,430,000	2,530,000	(3,967,000)
Other assets	(60,000)	97,000	102,000
Accounts payable	297,000	(4,271,000)	(724,000)
Accrued bonuses	0	0	(1,175,000)
Income tax payable	0	0	(2,909,000)
Other current liabilities	(151,000)	44,000	12,000
Net cash from operating activities	5,523,000	4,976,000	19,004,000
Cash flows from investing activities
Proceeds from sale of property and equipment	130,000	68,000	183,000
Proceeds from lawsuit to cancel intangible asset	770,000	0	0
Purchases of property and equipment	(1,087,000)	(1,686,000)	(2,456,000)
Deposit from related party	500,000	0	0
Deposits on equipment	0	(48,000)	(37,000)
Payments from related party	0	45,000	43,000
Net cash from (used in) investing activities	313,000	(1,621,000)	(2,267,000)
Cash flows from financing activities
Loan fees capitalized	(103,000)	(243,000)	0
Proceeds from sale of securities	500,000	0	0
Proceeds from long-term debt	3,308,000	0	342,000
Payments on long-term debt	(9,878,000)	(3,453,000)	(17,280,000)
Net cash used in financing activities	(6,173,000)	(3,696,000)	(16,938,000)
Net change in cash and cash equivalents	(337,000)	(341,000)	(201,000)
Cash at beginning of year	1,926,000	2,267,000	2,468,000
Cash at end of year	1,589,000	1,926,000	2,267,000
Supplemental disclosure of cash flow information:
Cash paid for interest	1,688,000	1,796,000	2,274,000
Tax refund received	1,009,000	2,758,000	0
Cash paid for taxes	12,000	308,000	3,385,000
Supplemental disclosure of noncash investing and financing activities:
Change in equipment purchases accrual	$ (100,000)	$ (2,000)	$ 101,000