Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Cash flows from operating activities:
Net income (loss)	$ 344	$ (931)
Reconciliation of net income (loss) to net cash provided by operating activities:
Depreciation	842	796
Amortization of intangible assets	1,154	1,632
Loss on disposal of equipment	71
Sale of intangible trade name	(1,000)
Loss on extinguishment of debt		2,166
Amortization of discount on notes payable		43
Interest added to long term debt principal		80
Stock based compensation expense	492	704
Gain from change in fair value of common stock warrant liability	(303)	(636)
Changes in operating assets and liabilities:
Accounts receivable	1,345	4,698
Prepaid expenses and other current assets	726	(213)
Other assets	162	46
Accounts payable	102	(983)
Accrued compensation and related expenses	(69)	(748)
Other accrued liabilities	159	(785)
Deferred revenue	(1,907)	41
Other long term liabilities	(81)	(59)
Net cash provided by operating activities	2,037	5,851
Cash flows from investing activities:
Proceeds from sale of intangible trade name	1,000
Purchases of property and equipment	(209)	(925)
Net cash provided by (used in) investing activities	791	(925)
Cash flows from financing activities:
Proceeds from issuance of common stock		192
Proceeds from issuance of preferred stock, net of issuance costs		3,966
Payment of preferred stock dividends	(66)
Prepayment penalty on extinguishment of debt		(368)
Payments of loan costs		(565)
Payments on revolving line of credit		(3,950)
Borrowings on revolving line of credit		6,500
Borrowings on term loan		16,000
Principal payments under debt obligations	(2,739)	(24,389)
Principal payments on capital leases	(298)	(262)
Net cash used in financing activities	(3,103)	(2,876)
Effect of exchange rate changes on cash and cash equivalents	(41)	(161)
Net increase (decrease) in cash and cash equivalents	(316)	1,889
Cash and cash equivalents, beginning of year	4,752	4,577
Cash and cash equivalents, end of year	4,436	6,466
Supplemental cash flow information:
Cash paid for interest	1,004	1,281
Cash paid for income taxes	209	94
Supplemental non-cash investing and financing activities:
Accrued preferred stock dividends	236	236
Property and equipment acquired through capital leases		$ 493