Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net loss	$ (257,000)	$ (735,000)
Reconciliation of net loss to net cash used in operating activities:
Depreciation	94,000	83,000
Amortization of license fee	25,000	25,000
Stock-based compensation expense	57,000	56,500
Provision for write down of inventory	12,000	12,000
Amortization of debt issuance costs	8,000	40,000
Accounts receivable	(1,546,000)	(370,000)
Inventories	(279,000)	(16,000)
Prepaid expenses and other current assets	(211,000)	120,000
Accounts payable and accrued expenses	426,000	97,000
Deferred income	77,000	195,000
Net cash used in operating activities	(1,594,000)	(472,000)
Cash flows from investing activities:
Capital expenditures	(60,000)	(139,000)
Deposits for capital expenditures		(115,000)
Product acquisition costs	(1,426,000)
Net cash used in investing activities	(1,486,000)	(254,000)
Cash flows from financing activities:
Proceeds from note payable, bank	1,000,000
Principal payments on capital lease obligation	(4,000)	(9,000)
Costs related to stock issuance	(42,000)
Proceeds from exercise of common stock warrants	236,000	9,000
Net cash provided by financing activities	1,190,000
Net decrease in cash and cash equivalents	(1,890,000)	(726,000)
Cash and cash equivalents at beginning of period	2,536,000	2,914,000
Cash and cash equivalents at end of period	646,000	2,188,000
Supplemental cash flow information:
Cash payments for interest	9,000	19,000
Cash payment for taxes	8,000	7,000
Equipment financed through capital lease		$ 30,000