Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
Cash flows from operating activities:
Net income (loss)	$ (633)	$ 157
Reconciliation of net income (loss) to net cash provided by operating activities:
Depreciation	265	278
Amortization of intangible assets	385	384
Sale of intangible trade name		(1,000)
Stock based compensation expense	53	176
Gain from change in fair value of common stock warrant liability	99	(460)
Changes in operating assets and liabilities:
Accounts receivable	2,494	2,134
Prepaid expenses and other current assets	541	427
Other assets	47	49
Accounts payable	212	123
Accrued compensation and related expenses	(1,057)	(463)
Other accrued liabilities	(14)	(89)
Deferred revenue	(1,420)	(1,102)
Other long term liabilities	(87)	(35)
Net cash provided by operating activities	885	579
Cash flows from investing activities:
Proceeds from sale of intangible trade name		1,000
Purchases of property and equipment	(3)	(32)
Proceeds from assets held for sale	400
Net cash provided by investing activities	397	968
Cash flows from financing activities:
Payment of preferred stock dividends		(66)
Principal payments under debt obligations	(1,641)	(1,700)
Principal payments on capital leases	(56)	(98)
Net cash used in financing activities	(1,697)	(1,864)
Effect of exchange rate changes on cash		(88)
Net decrease in cash	(415)	(405)
Cash, beginning of year	5,459	5,459
Cash, end of period	5,044	4,347
Supplemental cash flow information:
Cash paid for interest	341	400
Cash paid for income taxes	14	131
Supplemental non-cash investing and financing activities:
Accrued preferred stock dividends	66	35
Conversion of preferred stock to common stock	$ 2