Condensed Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 21,019	$ 2,109
Accounts receivable		110
Prepaid expenses and other current assets	301	282
Total current assets	21,320	2,501
Property and equipment, net	346	357
Other long-term assets	130	53
Total assets	21,796	2,911
Current liabilities:
Accounts payable	433	159
Accrued expenses	1,121	461
Accrued disposition costs	986	703
Deferred revenue		237
Total current liabilities	2,540	1,560
Convertible notes payable, net of discount	64
Deferred revenue		35
Total liabilities	2,604	1,595
Stockholders' equity:
Common stock	2,002	401
Additional paid-in capital	173,168	149,340
Accumulated deficit	(155,978)	(148,425)
Total stockholders' equity	19,192	1,316
Total liabilities and stockholders' equity	$ 21,796	$ 2,911

Name:	APPA_AccruedDispositionCosts
Namespace Prefix:	appa
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).