XML 76 R21.htm IDEA: XBRL DOCUMENT
v3.20.1

Repurchase of Common Stock | 6 Months Ended
--- | ---
Mar. 31, 2020
Repurchase Of Common Stock [Abstract] |
Repurchase of Common Stock | 13. Repurchase of Common Stock On November 13, 2007, the Board of Directors authorized the Company to purchase 250 thousand shares of its outstanding common stock. On February 3, 2009, the Board of Directors authorized the Company to purchase up to 350 thousand additional shares of the Company's outstanding common stock at market price. On February 8, 2011, the Board of Directors authorized the Company to purchase up to 250 thousand additional shares of the Company's outstanding common stock at market price. The plan does not expire. Pursuant to the aforementioned authorization, the Company repurchased 6 thousand shares of its outstanding common stock on the open market during the six months ended March 31, 2020. As of March 31, 2020, approximately 195 thousand shares remain authorized to repurchase under the stock repurchase program.

X
- Definition Repurchase Of Common Stock [Abstract] + References No definition available. + Details
Name: | cspi_RepurchaseOfCommonStockAbstract
Namespace Prefix: | cspi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure of repurchase of common stock. + References No definition available. + Details
Name: | cspi_RepurchaseOfCommonStockDisclosureTextBlock
Namespace Prefix: | cspi_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration